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American Journal of Reproductive Immunology: AJRI

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https://www.readbyqxmd.com/read/28653491/the-role-of-%C3%AE-%C3%AE-t-cells-during-human-pregnancy
#1
Chunyu Huang, Yong Zeng, Wenwei Tu
Pregnancy is an evolutionarily important and mysterious process. The placenta, as the nutrient and gas exchange organ, plays an essential role during this process. In addition, the interaction between trophoblast and maternal immune cells at the maternal-fetal interface is also associated with successful pregnancy. Human leukocyte antigen (HLA) molecules on trophoblast cells are involved in protecting the fetus from maternal rejection. Trophoblast cells comprise three subpopulations, including syncytiotrophoblast cells, cytotrophoblast cells, and extravillous trophoblast cells, and these cells express different HLA molecules...
June 27, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28653441/prior-pregnancy-and-antenatal-rubella-sero-negativity-evidence-of-persistent-maternal-immunologic-alteration
#2
Terence T Lao, Annie S Y Hui, Daljit S Sahota
PROBLEM: It is unclear if the immunologic alterations induced by pregnancy could persist. METHOD OF STUDY: Antenatal rubella sero-negativity was correlated with gravidity, abortions and parity in 112 083 gravidae managed during 1997-2015, with further analysis stratified for factors known to influence rubella serology. RESULTS: The 10.2% sero-negative gravidae had different characteristics, and the incidence showed significant difference and positive trend (P<...
June 27, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28653360/identification-of-genes-dysregulated-by-elevation-of-microrna-210-levels-in-human-trophoblasts-cell-line-swan-71
#3
Sejin Ahn, Eunbee Jeong, Jae Woong Min, Eunhee Kim, Sun Shim Choi, Chong Jae Kim, Deug-Chan Lee
PROBLEM: Preeclampsia is a serious pregnancy disorder characterized by gestational hypertension and proteinuria. miR-210 is significantly overexpressed in the placentas of preeclampsia patients. METHOD OF STUDY: Swan 71 cells, first-trimester human trophoblastic cell line, were transfected with hsa-miR-210-3p oligonucleotides by electroporation. Altered transcriptome was analyzed using microarray technique. Differentially expressed genes (DEGs) were clustered into Gene Ontology annotation biological processes...
June 27, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28639391/an-investigation-of-the-relationship-between-recurrent-spontaneous-abortion-and-memory-t-follicular-helper-cells
#4
Xiaorui Luan, Xiaomin Kang, Weiping Li, Qian Dong
PROBLEM: Immune tolerance with respect to a semi-allogeneic fetus plays a key role in the establishment of a pregnancy. Memory T follicular helper (Tfh) cells have a central role in the regulation of the adaptive immune response. Much of our knowledge of memory Tfh cells' function comes from immune-related diseases. However, the true physiological characteristics of memory Tfh cells and their mode of action in pregnancy remain unclear. METHODS OF STUDY: Deciduas and blood were obtained from 25 recurrent spontaneous abortion (RSA) patients undergoing surgical abortion and 19 normal women in early pregnancy undergoing elective termination...
June 21, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28639334/uterine-natural-killer-cells-in-patients-with-idiopathic-recurrent-miscarriage
#5
Ruben-J Kuon, Maja Weber, Julia Heger, Isabel Santillán, Kilian Vomstein, Christin Bär, Thomas Strowitzki, Udo R Markert, Bettina Toth
PROBLEM: Uterine natural killer (uNK) cells are major players during implantation and early pregnancy. The aim of our study was to analyze uNK cell concentration in the endometrium of idiopathic recurrent miscarriage (iRM) patients and fertile controls. METHOD OF STUDY: Out of n=130 couples with ≥3 consecutive, clinical RM screened according to a standardized diagnostic protocol, n=58 patients with iRM were identified. Endometrial biopsies were investigated in patients and n=17 fertile women (controls) via immunohistochemistry...
June 21, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28635072/plgf-enhances-tlr-dependent-inflammatory-responses-in-human-mononuclear-phagocytes
#6
Laura F Newell, Shernan G Holtan, Jane E Yates, Leonardo Pereira, Jeffrey W Tyner, Irina Burd, Grover C Bagby
PROBLEM: Levels of placental growth factor (PlGF) peak during third trimester of pregnancy, a time when women are at increased risk of virus-induced morbidity. We hypothesized PlGF might contribute to an exaggerated inflammatory response to Toll-like receptor (TLR) activation. METHOD OF STUDY: Primary human adult and cord blood CD14(+) cells were cultured in the presence of TLR ligands and/or PlGF. RESULTS: PlGF significantly enhanced the magnitude and duration of TNF messenger RNA and protein production by TLR-7/8-activated monocytes, and increased subsequent production of TNF-independent inflammatory cytokines...
June 20, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28608596/live-birth-rate-following-oral-antibiotic-treatment-for-chronic-endometritis-in-infertile-women-with-repeated-implantation-failure
#7
Kotaro Kitaya, Hidehiko Matsubayashi, Yukiko Takaya, Rie Nishiyama, Kohei Yamaguchi, Takumi Takeuchi, Tomomoto Ishikawa
PROBLEM: The aim of this prospective study was to investigate the prevalence of chronic endometritis (CE) in infertile women with a history of repeated implantation failure (RIF) and to determine whether oral antibiotic treatment improves their live birth rate in the following embryo transfer (ET) cycles. METHOD OF STUDY: Endometrial biopsy samples obtained from infertile women with RIF were subjected to immunohistochemistrical/histopathologic diagnosis of CE. Following antibiotic administration to the RIF/CE group, their histopathologic cure rate, microbial detection rate, and reproductive outcome in the subsequent ET cycles were prospectively studied...
June 13, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28608468/toll-like-receptor4-as-a-modulator-of-fertilization-and-subsequent-pre-implantation-development-following-in-vitro-maturation-in-mice
#8
Sara Hosseini, Maryam Dehghani-Mohammadabadi, Marefat Ghafarri Novin, Mostafa Haji Molla Hoseini, Ehsan Arefian, Samira Mohammadi Yeganeh, Mohammad Salehi
PROBLEM: The use of in vitro maturation (IVM) as an alternative approach to the conventional assisted reproductive technique in clinical practice is limited due to low fertilization rate. The expression of Toll-like receptors (TLRs) as members of an innate immune system in cumulus cells are thought to affect fertilization. This study was aimed to evaluate the effect of IVM on TLR4 gene expression and fertilization rate in oocytes derived from IVM in comparison with in vivo matured one...
June 13, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28593707/soluble-ceacam1-and-ceacam6-are-differently-expressed-in-blood-serum-of-pregnant-women-during-normal-pregnancy
#9
Pawel Mach, Alexandra Gellhaus, Sebastian Prager, Tom Moore, Gunther Wennemuth, Rainer Kimmig, Angela Köninger, Bernhard B Singer
PROBLEM: CEACAM1 and CEACAM6 belong to the carcinoembryonic antigen (CEA) family and may play an immune-modulatory role during pregnancy. The aim of the study was to determine the blood serum levels of soluble CEACAM1 and CEACAM6 over the course of pregnancy and postpartum. METHOD OF STUDY: CEACAM1 and CEACAM6 levels were determined with customized in-house Sandwich-enzyme-linked immunosorbent assay (ELISA) systems. The study population (n=125) was divided into four groups according to the pregnancy trimester and postpartum...
June 8, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28590025/apobec3g-is-increasingly-expressed-on-the-human-uterine-cervical-intraepithelial-neoplasia-along-with-disease-progression
#10
Takashi Iizuka, Kousho Wakae, Mitsuhiro Nakamura, Koichi Kitamura, Masanori Ono, Hiroshi Fujiwara, Masamichi Muramatsu
PROBLEM: APOBEC3G (A3G) is a cytidine deaminase that exhibits antiviral activity by introducing C-to-T hypermutation in viral DNA. We recently observed the distinct presence of C-to-T hypermutation of human papillomavirus DNA in uterine cervical intraepithelial neoplasia (CIN), suggesting the possible involvement of A3G in the mutation-inducing process. Consequently, we investigated the association of A3G expression with CIN progression in this study. METHOD OF STUDY: Patients who had undergone cervical conization due to CIN1 (n=11), CIN2 (n=9), CIN3 (n=12), and micro-invasive squamous cell carcinoma (n=2) were included...
June 7, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28585775/the-roles-of-the-pd-1-pd-l1-pathway-at-immunologically-privileged-sites
#11
Li-Ling Wang, Zhi-Hui Li, Xiao-Hui Hu, Kahinho P Muyayalo, Yong-Hong Zhang, Ai-Hua Liao
The PD-1/PD-L1 pathway plays a vital role in the maintenance of peripheral tolerance, promoting the development and function of regulatory T cells, and maintaining the quiescence of autoreactive T cells. Abnormalities in this inhibitory pathway are involved in the pathogenesis of some disorders such as tumours, autoimmune diseases, pregnancy complications, and transplantation rejection. Immune privilege represents a special immunological condition, where foreign antigens can be tolerated and do not elicit an immune response...
June 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28585734/immunological-function-of-vitamin-d-during-human-pregnancy
#12
Jin-Lu Ji, Kahinho P Muyayalo, Yong-Hong Zhang, Xiao-Hui Hu, Ai-Hua Liao
The well-established classic role of vitamin D is implicated in the regulation of the balance between calcium and phosphorus. Furthermore, vitamin D is also involved in many non-classic physiological processes, mainly including the regulation of cell proliferation, differentiation, apoptosis and immune function, participation in the inflammatory response and maintenance of genome stability function. During pregnancy, vitamin D receptor and its metabolic enzymes are expressed at the placenta and decidua, indicating the potential role in the mechanism of immunomodulation at the maternal-fetal interface...
June 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28585716/detection-of-dendritic-cells-and-related-cytokines-in-follicular-fluid-of-patients-with-polycystic-ovary-syndrome
#13
Tao Zhang, Fuying Tian, Ran Huo, Aifa Tang, Yong Zeng, Yong-Gang Duan
PROBLEM: The presence of dendritic cells (DCs) and associated cytokines in follicular fluid (FF) from patients with polycystic ovary syndrome (PCOS) remains unknown. METHODS OF STUDY: FF was collected from PCOS patients and patients with severe male factor infertility (control) at the day of transvaginal oocyte retrieval. Phenotypes of DC were detected by flow cytometry, and TNF-α, IL-6, IL-10, and IL-23 were assessed by ELISA. RESULTS: A significant decrease in the percentage of DC was found in patients with PCOS (16...
June 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28585708/the-cytokine-network-in-women-with-an-asymptomatic-short-cervix-and-the-risk-of-preterm-delivery
#14
Adi L Tarca, Wendy Fitzgerald, Piya Chaemsaithong, Zhonghui Xu, Sonia S Hassan, Jean-Charles Grivel, Nardhy Gomez-Lopez, Bogdan Panaitescu, Percy Pacora, Eli Maymon, Offer Erez, Leonid Margolis, Roberto Romero
PROBLEM: To characterize the amniotic fluid (AF) inflammatory-related protein (IRP) network in patients with a sonographic short cervix (SCx) and to determine its relation to early preterm delivery (ePTD). METHOD OF STUDY: A retrospective cohort study included women with a SCx (≤25 mm; n=223) who had amniocentesis and were classified according to gestational age (GA) at diagnosis and delivery (ePTD <32 weeks of gestation). RESULTS: (i) In women with a SCx ≤ 22 1/7 weeks, the concentration of most IRPs increased as the cervix shortened; those with ePTD had a higher rate of increase in MIP-1α, MCP-1, and IL-6 concentrations than those delivering later; and (ii) the concentration of most IRPs and the correlation between several IRP pairs were higher in the ePTD group than for those delivering later...
June 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28585704/the-regulations-and-role-of-circadian-clock-and-melatonin-in-uterine-receptivity-and-pregnancy-an-immunological-perspective
#15
Gene Chi Wai Man, Tao Zhang, Xiaoyan Chen, Jianzhang Wang, Fangrong Wu, Yingyu Liu, Chi Chiu Wang, Ying Cheong, Tin Chiu Li
During normal pregnancy, the mechanism by which the fetus escapes immunological rejection by the maternal womb remains elusive. Given the biological complexities, the immunological mechanism is unlikely to be simply an allograft response in acceptance or rejection of the early pregnancy. Circadian clock responsible for the mammalian circadian rhythm is an endogenously generated rhythm associated with almost all physiological processes including reproduction. There is now growing evidence to suggest that the circadian clocks are intricately linked to the immune system and pregnancy...
June 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28557314/estradiol-and-progesterone-influence-on-influenza-infection-and-immune-response-in-a-mouse-model
#16
Sarah M Davis, Leigh M Sweet, Karen H Oppenheimer, Benjamin T Suratt, Mark Phillippe
PROBLEM: Influenza infection severity may be mediated by estradiol and/or progesterone. METHOD OF STUDY: An exploratory study was designed to evaluate 17-β-estradiol and progesterone on influenza infection and examine immune-mediated response in a mouse model. Inoculation with placebo or mouse-adapted H1N1 influenza virus occurred. Treatment groups included 17-β-estradiol, progesterone, ovariectomy, and pregnancy. Mice were assessed for morbidity and mortality...
May 30, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28557135/labor-prediction-based-on-the-expression-patterns-of-multiple-genes-related-to-cervical-maturation-in-human-term-pregnancy
#17
Taiki Samejima, Takeshi Nagamatsu, Danny J Schust, Takayuki Iriyama, Seisuke Sayama, Masaki Sonoda, Atsushi Komatsu, Kei Kawana, Yutaka Osuga, Tomoyuki Fujii
PROBLEM: This study explored the possibility of evaluating cervical maturation using swabbed cervical cell samples at term pregnancy, and aimed to develop a novel approach to predict labor onset. METHOD OF STUDY: Women with uncomplicated pregnancies (n=117 from 62 women at term pregnancy) were recruited. Messenger RNA expression levels of cervical cells for ten genes were quantified by qPCR. Principal component analysis (PCA) was conducted, and principal components that significantly contributed to the prediction of days to delivery were determined...
May 30, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28557047/prevention-of-alloimmunization-during-pregnancy-by-prednisone-and-immunoglobulin-g-what-is-the-evidence
#18
LETTER
Jens Kjeldsen-Kragh
No abstract text is available yet for this article.
May 30, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28543977/abnormal-ratio-of-cd57-cells-to-cd56-cells-in-women-with-recurrent-implantation-failure
#19
Ruiwei Jiang, Guijun Yan, Jun Xing, Zhilong Wang, Yong Liu, Hongyan Wu, Xiangshan Fan, Jianjun Zhou, Lijun Ding, Haixiang Sun
PROBLEM: To define a more precise parameter for a better understanding of natural killer (NK) cells and its relation with regulatory T cells (Tregs) in women with recurrent implantation failure (RIF). METHOD OF STUDY: The percentages of CD56+ cells, CD57+ cells and Foxp3+ cells in the endometrium and blood from 23 normal controls and 32 women with RIF were measured by immunocytochemistry and flow cytometry. RESULTS: Women with RIF had significantly increased ratio of CD57+ cells to CD56+ cells in both the endometrium (P<...
May 20, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28544362/cxcl10-and-il-6-markers-of-two-different-forms-of-intra-amniotic-inflammation-in-preterm-labor
#20
Roberto Romero, Piya Chaemsaithong, Noppadol Chaiyasit, Nikolina Docheva, Zhong Dong, Chong Jai Kim, Yeon Mee Kim, Jung-Sun Kim, Faisal Qureshi, Suzanne M Jacques, Bo Hyun Yoon, Tinnakorn Chaiworapongsa, Lami Yeo, Sonia S Hassan, Offer Erez, Steven J Korzeniewski
PROBLEM: To determine whether amniotic fluid (AF) CXCL10 concentration is associated with histologic chronic chorioamnionitis in patients with preterm labor (PTL) and preterm prelabor rupture of the membranes (PROM). METHOD OF STUDY: This study included 168 women who had an episode of PTL or preterm PROM. AF interleukin (IL)-6 and CXCL10 concentrations were determined by immunoassay. RESULTS: (i) Increased AF CXCL10 concentration was associated with chronic (OR: 4...
May 19, 2017: American Journal of Reproductive Immunology: AJRI
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